SK Telecom dethroned compatriot KT to record the world's fastest 5G download speeds among small land-area markets, averaging 495.1Mbps, according to Opensignal's annual Global Mobile Network Experience Awards published September 29.

The measurement, drawn from billions of real-world user samples collected between January 1 and June 29, 2026, puts the South Korean operator ahead of a field split between large markets (over 200,000 km²) and small ones (under 200,000 km²) — a distinction Opensignal uses because blanketing a vast geography with 5G is a fundamentally different engineering challenge from serving a compact, densely populated one.

T-Mobile US doubles up

T-Mobile US retained the 5G Coverage Experience title in large land-area markets and also won the newly introduced Time on 5G category, which measures how much of users' connected time runs on 5G rather than falling back to 4G. The back-to-back coverage win underscores the operator's mid-band build-out advantage, as measured by actual subscriber experience rather than vendor-reported site counts.

In small land-area markets, Singapore's Singtel repeated its 5G Coverage Experience win, while city-state rival StarHub topped Time on 5G — a split result suggesting no single Singaporean operator dominates every dimension of the 5G experience.

Vivo holds speed crown in Brazil

Brazil's Vivo defended its 5G Download Speed title in large land-area markets, with domestic rivals Claro and TIM finishing close behind as Global Leaders — a concentration of the top tier within one Latin American market that few other regions matched. The three operators have raced to expand 3.5GHz coverage since Brazil's spectrum auctions, and the Opensignal data indicates that competition has pushed real-world throughput up across the board.

Japan took two reliability spots at the top of the large land-area table, with KDDI's au and SoftBank jointly leading 5G Reliability. Au also repeated as 5G Voice App Experience winner in large markets, while KT took that title in small markets — a consolation after losing the download speed crown to SK Telecom.

Nordic logjam in video

The 5G Video Experience category produced an unusual outcome in large land-area markets: twelve operators from Sweden, Norway, Finland and Poland tied for the title, including Elisa and DNA in Finland, Tele2, 3 and Telenor in Sweden, Telenor, ice and Telia in Norway, T-Mobile Poland, Play and Orange in Poland, and Telia in Finland. The Netherlands' Odido won outright in small markets, a notable result for an operator that has repositioned itself around premium network quality since its 2021 rebrand.

Germany's Telekom won 5G Games Experience in large markets and Switzerland's Swisscom took the small-market title — both markets where gaming-grade latency over 5G has been a marketing focus.

In small land-area reliability, Denmark's Telenor and Norlys shared the top spot with Austria's A1 and Slovenia's A1.

Rising stars

Peru's Bitel emerged as the biggest mover overall, earning Rising Star recognition — awarded to the five most-improved operators year-over-year — across five categories: Download Speed, Video, Games, Voice App and Reliability. South Africa's Vodacom and Albania's ONE each collected three Rising Star titles.

"The consumer connectivity experience is at the core of everything we do at Opensignal. As the role of 5G in modern life grows, the bar for what great 5G looks like keeps rising," said Shawn Heidel, President, Network Experience at Opensignal. "The best operators in the world are defined by how well they deliver on that challenge, and this year's Global 5G Award winners set the standard."

Opensignal bases its rankings on measurement data from over 100 million devices worldwide, generating more than 50 billion daily data points across mobile, fixed broadband and satellite networks. That scale separates the awards from speed-test-based league tables, which can skew toward self-selected users rather than representative samples.

The full report, including complete lists of Winners, Leaders, Rising Stars and qualifying operators across all markets, is available on Opensignal's insights site. With the Time on 5G category now established as an award in its own right, operators entering the 2027 measurement window — which Opensignal will collect over the coming year — will face growing pressure to keep users on 5G consistently, not just to register fast peak speeds.